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We present an investigation into the rotation and stellar activity of four fully convective M dwarf “twin” wide binaries. Components in each pair have (1) astrometry confirming they are common-proper-motion binaries, (2) Gaia BP, RP, and 2MASS J, H, and K s magnitudes matching within 0.10 mag, and (3) presumably the same age and composition. We report long-term photometry, rotation periods, multiepoch Hα equivalent widths, X-ray luminosities, time series radial velocities, and speckle observations for all components. Although it might be expected for the twin components to have matching magnetic attributes, this is not the case. Decade-long photometry of GJ 1183 AB indicates consistently higher spot activity on A than B, a trend matched by A appearing 58% ± 9% stronger in L X and 26% ± 9% stronger in Hα on average—this is despite similar rotation periods of A = 0.86 day and B = 0.68 day, thereby informing the range in activity for otherwise identical and similarly rotating M dwarfs. The young β Pic Moving Group member 2MA 0201+0117 AB displays a consistently more active B component that is 3.6 ± 0.5 times stronger in L X and 52% ± 19% stronger in Hα on average, with distinct rotation at A = 6.01 days and B = 3.30 days. Finally, NLTT 44989 AB displays remarkable differences with implications for spindown evolution—B has sustained Hα emission while A shows absorption, and B is ≥39 ± 4 times stronger in L X, presumably stemming from the surprisingly different rotation periods of A = 38 days and B = 6.55 days. The last system, KX Com, has an unresolved radial velocity companion, and is therefore not a twin system.

Shallow mantle processes such as edge-driven convection are thought to play an important role in shaping the passive margin setting. Previous geophysical investigations of northern New England suggest this process is likely operating beneath this portion of the eastern North American margin today. In western Vermont and eastern New York, USA, Early Cretaceous magmatism dated at ca. 140–130 Ma in the Burlington lobe and at ca. 110–100 Ma in the Taconic lobe of the New England–Quebec igneous province may represent the upper crustal expression of edge-driven convection operating beneath the eastern North American margin in the geologic past. This investigation addresses the potential relationship between these two episodes of magmatism and upper crustal deformation in northern New England through paleostress analysis of Early Cretaceous sheet intrusions and mesoscale normal faults, and geochemical analysis of sheet intrusions. The two episodes of magmatism are geochemically similar, display typical characteristics of intraplate alkaline magmatism, and are likely the product of a common source. Paleostress analysis and crosscutting relationships indicate that Burlington lobe magmatism was associated with a subhorizontal N–S extensional stress field, and Taconic lobe magmatism was associated with a subhorizontal NW–SE extensional stress field. Both stress fields represent short-term perturbations to the regional Early Cretaceous subhorizontal NE–SW extensional stress field. Each perturbation coincided with and likely continued following magmatism. The magmatism, geographic and temporal scale of the stress field changes, and return to regional subhorizontal NE–SW extension following these events are consistent with the periodic nature of edge-driven convection and associated small-scale delamination events. This field-based documentation of intraplate magmatism and its association with short-term changes in the stress field improves our understanding of the upper crustal expression of edge-driven convection at passive margins.

Communicating User Experience illustrates how the use of Local Strategies Research (LSR) methodologies enables designers to understand the cultural implications for user actions and practices in a...

An ongoing challenge in the preparation of school psychologists, particularly in the first year of graduate training, is finding learning experiences that provide students with an opportunity to apply foundational skills, such as consultation and data-based decision-making, in a culturally responsive manner. Service-learning is a well-established teaching mechanism designed to address just this need, yet there is scant scholarship on ways to utilize this methodology in school psychology training. This manuscript describes a service-learning experience at an urban tutoring center in which first-year school psychology Ed.S. and Ph.D. students gathered agency-wide comprehensive academic screening data and provided targeted consultation support in the area of reading comprehension to identified fourth- through sixth-grade students and their tutors. Indicators of the positive impact of this work across stakeholder groups is provided.

Second Step is a universal social-emotional learning program designed to decrease antisocial behaviors, increase prosocial behaviors, and increase knowledge about content curriculum. Given the international focus of using Second Step to improve social-emotional skills, it is especially important to provide an updated synthesis on the effect of the intervention. A single-program meta-analysis was completed in order to determine effects of participating in Second Step and to explore moderators of program effectiveness on prosocial and antisocial behavior outcomes as well as knowledge of emotions. Five moderators were explored, including (a) program saturation, (b) dependent variable source, (c) grade range, (d) metro area, and (e) geographical location. A combined total of 18,847 participants were included in the analysis of 27 studies. Results of the current study indicate that Second Step’s impact on students’ knowledge and attitudes of violence and violence prevention is much stronger than on increasing prosocial behavior or reducing antisocial behavior.

The provision of educational and psychological services in schools is confronted by major social challenges. Inasmuch as the problems of our society encroach on the fulfillment of educational goals, a solution to these problems may lie in the manner in which educators—specifically school psychologists—approach their work with students, families, and communities. This chapter argues that the intentional practice of school psychology through a social justice lens enacts the potential of school psychologists who aim to serve as agents of positive change. As an aspirational goal, lens for viewing the world, and as a set of action steps, social justice is increasingly referenced and embedded in school psychology training, research, and practice. But what is social justice and how can we best prepare school psychologists to deliver services using a social justice framework? These are the topics explored in this chapter. (PsycInfo Database Record (c) 2024 APA, all rights reserved)

Goalball, a sport designed for those with visual impairments, is a competitive and recreational sport enjoyed by athletes around the world. Students with and without visual impairments can experience positive outcomes when teachers appropriately include a goalball unit as part of their inclusive secondary physical education curriculum. This article aims to help teachers identify these outcomes through strategies that encourage student success and appreciation for the sport. A framework to implement a goalball unit is provided along with strategies to target skill, tactical and game-play development.

Little is known about which curricular models and activity units are being taught in public schools. This exploratory study examined the K–12 physical education (PE) content and curricular models being implemented. Supervisors of PE recruited from one northeastern state participated in a 25-item questionnaire. Descriptive statistics and frequencies were calculated. Sixty-nine of 92 questionnaires were usable and included in the data analysis. Findings suggest that few districts were using a curricular model at the elementary (K–5) level (27%). Another common response of adopted curricular models at the elementary level was Movement Education (17.6%). At the secondary level, No Model (35%) and Fitness Education (25.6%) were common responses. Specific units such as volleyball, basketball, and weight training yielded the highest responses, while field hockey, golf, archery, lacrosse, and tennis yielded the fewest responses. The findings suggest that K–12 PE curricula may not reflect current trends and mandates. The key determinants could be a lack of curricular model use and heavy reliance upon activities known to present challenges toward standards-based education (i.e., softball). Perhaps K–12 PE and PE preparation programs can connect to effectively articulate a curriculum, and adopt and train on curricular approaches aiming to increase teacher effectiveness and reach national standards.Subscribe to TPE

Assistive technology supplements and supports the learning of students with disabilities in school and at home. Thanks to federal mandates, students with disabilities receive consideration for assistive technology devices and services — the tools and supports needed to achieve determined learning outcomes. Assistive technology devices and services operate as a process, ensuring students with disabilities receive optimal access to learning across all educational settings and subject areas. This article provides physical educators with a working knowledge of the assistive technology process along with recommendations for supporting their students with disabilities.

Request PDF | Induction of Construal-Level Mindset via Experience of Surprise: An Abstract: Proceedings of the 2018 Academy of Marketing Science (AMS) Annual Conference | An experience of surprise is often an outcome of disconfirmation of expectations and can be associated with positive or negative affect depending... | Find, read and cite all the research you need on ResearchGate

In this research, we find that incentive valence and construal-level mindsets can interact to influence behavioral persistence on challenging tasks. An abstract mindset improves persistence in response to positively framed incentives whereas a concrete mindset improves persistence in response to negatively framed incentives. This interaction effect can be observed even when the cues inducing construal-level mindsets are not related to the incentives or the incentivized tasks. Participants in our studies were either positively or negatively incentivized to solve a set of difficult anagrams, and were primed with an abstract or a concrete mindset using spatial (Study 1) and social (Study 2) cues. The participants persisted longer in response to the positively framed incentive when primed with spatially or socially remote cues. In contrast, for the negatively framed incentive, participants persisted longer when primed with spatially or socially proximal cues. Copyright © 2017 John Wiley & Sons, Ltd.

Our goal as physical educators is to help all students develop the knowledge, skills and dispositions to be physically active for a lifetime. Despite efforts to address the diverse needs of students through quality physical education, the reality is that some students still need additional support beyond physical education to achieve their full potential. Response to intervention (RTI) is a proactive approach to educational-service delivery that relies on data-driven decision making to identify student needs and to tailor support. Traditionally, RTI has focused on addressing the needs of lower-performing students through tiered interventions. The purpose of this article is to review the basic principles of RTI, discuss how they have been applied in physical education thus far, and expand the conceptual framework so it can be used to address the needs of both higher- and lower-performing students.

This project aimed to develop a valid and reliable scale measuring Chinese preservice physical education teachers’ beliefs about the physical education profession (PPET-BPEP). The domains and items were created from a conceptual analysis of the previous literature and PPETs’ responses to an open-ended survey. Six experts in the field of physical education and educational psychology evaluated the content validity of the scale. The reliability and factorial validity of the scale were examined utilizing a sample of 696 Chinese PPETs. The PPET-BPEP scale with 12 items embedded in two domains revealed acceptable content validity, internal structure validity, and internal consistency. The two domains were labeled as “sense of calling” and “value of physical education profession” based on the shared content of items in each domain. We recommend using PPET-BPEP scale for PPET recruitment and preparation. The scale can also help establish teacher belief scales in other subject matters. Future validation of the scale is needed in different countries and institutions.

The social communication and interaction deficits associated with the autism phenotype can have serious emotional consequences for individuals on the autism spectrum. This can be particularly true during young-adulthood, a period of increased social demands and expectations. The current study investigated the specific role of social problem-solving deficits as a mediator in the relationship between autism phenotype severity and depressive symptomology in young-adults. A sample of 230 university students (48% male) ranging in age from 18 to 30 (M=21.30, SD=2.48) were assessed on autism phenotype expression (Autism-Spectrum Quotient), social problem-solving ability (Social Problem-Solving Inventory, Revised) and depressive symptomology (Beck’s Depression Inventory). Results indicated that deficient social problem-solving skills account for a significant portion of the depressive symptomology associated with increased autism phenotype expression. Path model analysis output suggested that increased expression of the social components of the autism phenotype are associated with both ineffective social problem-solving styles and attitudes, while increased detail orientation discourages the use of an impulsive problem-solving style. The findings of this investigation provide preliminary evidence suggesting that programs designed to improve social problem-solving skills could be beneficial in the reduction of depressive vulnerability for young-adults on the autism spectrum.

Increasing concentrations of pharmaceutical compounds occur in many rivers, but their environmental risk remains poorly studied in stream biofilms. Flow intermittency shapes the structure and functions of ecosystems, and may enhance their sensitivity to toxicants. This study evaluates the effects of a long-term exposure of biofilm communities to a mixture of pharmaceutical compounds at environmental concentrations on biofilm bioaccumulation capacity, the structure and metabolic processes of algae and bacteria communities, and how their potential effects were enhanced or not by the occurrence of flow intermittency. To assess the interaction between those two stressors, an experiment with artificial streams was performed. Stream biofilms were exposed to a mixture of pharmaceuticals, as well as to a short period of flow intermittency. Results indicate that biofilms were negatively affected by pharmaceuticals. The algal biomass and taxa richness decreased and unicellular green algae relatively increased. The structure of the bacterial (based on denaturing gradient gel electrophoresis of amplified 16S rRNA genes) changed and showed a reduction of the operational taxonomic units (OTUs) richness. Exposed biofilms showed higher rates of metabolic processes, such as primary production and community respiration, attributed to pharmaceuticals stimulated an increase of green algae and heterotrophs, respectively. Flow intermittency modulated the effects of chemicals on natural communities. The algal community became more sensitive to short-term exposure of pharmaceuticals (lower EC50 value) when exposed to water intermittency, indicating cumulative effects between the two assessed stressors. In contrast to algae, the bacterial community became less sensitive to short-term exposure of pharmaceuticals (higher EC50) when exposed to water intermittency, indicating co-tolerance phenomena. According to the observed effects, the environmental risk of pharmaceuticals in nature is high, but different depending on the flow regime, as well as the target organisms (autotrophs vs heterotrophs).

Wastewater treatment plants (WWTPs) are one of the main sources of pharmaceuticals and endocrine disrupting compounds in freshwater ecosystems, and several studies have reported bioaccumulation of these compounds in different organisms in those ecosystems. River biofilms are exceptional indicators of pollution, but very few studies have focused on the accumulation of these emerging contaminants. The objectives of this study were first to develop an efficient analytical methodology for the simultaneous analysis of 44 pharmaceuticals and 13 endocrine disrupting compounds in biofilm, and second, to assess persistence, distribution, and bioaccumulation of these contaminants in natural biofilms inhabiting a WWTP-impacted river. The method is based on pressurized liquid extraction, purification by solid-phase extraction, and analysis by ultra performance liquid chromatography coupled to a mass spectrometer (UPLC–MS/MS) in tandem. Recoveries for pharmaceuticals were 31–137%, and for endocrine disruptors 32–93%. Method detection limits for endocrine disruptors were in the range of 0.2–2.4ngg−1, and for pharmaceuticals, 0.07–6.7ngg−1. A total of five endocrine disruptors and seven pharmaceuticals were detected in field samples at concentrations up to 100ngg−1.

Increasing evidence exists that emerging pollutants such as pharmaceuticals (PhACs) and endocrine-disrupting compounds (EDCs) can be bioaccumulated by aquatic organisms. However, the relative role of trophic transfers in the acquisition of emerging pollutants by aquatic organisms remains largely unexplored. In freshwater ecosystems, wastewater treatment plants are a major source of PhACs and EDCs. Here we studied the entrance of emerging pollutants and their flow through riverine food webs in an effluent-influenced river. To this end we assembled a data set on the composition and concentrations of a broad spectrum of PhACs (25 compounds) and EDCs (12 compounds) in water, biofilm, and three aquatic macroinvertebrate taxa with different trophic positions and feeding strategies (Ancylus fluviatilis, Hydropsyche sp., Phagocata vitta). We tested for similarities in pollutant levels among these compartments, and we compared observed bioaccumulation factors (BAFs) to those predicted by a previously-developed empirical model based on octanol–water distribution coefficients (Dow). Despite a high variation in composition and levels of emerging pollutants across food web compartments, observed BAFs in Hydropsyche and Phagocata matched, on average, those already predicted. Three compounds (the anti-inflammatory drug diclofenac, the lipid regulator gemfibrozil, and the flame retardant TBEP) were detected in water, biofilm and (at least) one macroinvertebrate taxa. TBEP was the only compound present in all taxa and showed magnification across trophic levels. This suggests that prey consumption may be, in some cases, a significant exposure route. This study advances the notion that both waterborne exposure and trophic interactions need to be taken into account when assessing the potential ecological risks of emerging pollutants in aquatic ecosystems.

The bioaccumulation of 20 pharmaceuticals in cockle (Cerastodema glaucum), noble pen shell (Pinna nobilis), sea snail (Murex trunculus), golden grey mullet (Liza aurata) and black goby (Gobius niger) was evaluated, considering their distribution throughout the Mar Menor lagoon and their variations in spring and autumn 2010. The analytical procedure was adapted for the different matrices as being sensitive and reproducible. Eighteen out of the 20 compounds analysed were found at low ngg−1 in these species throughout the lagoon. Hydrochlorothiazide and carbamazepine were detected in all species considered. The bioaccumulation of pharmaceuticals was heterogeneous in the lagoon, with a higher number of pharmaceuticals being detected in fish (18) than in wild molluscs (8), particularly in golden grey mullet muscle (16). В-blockers and psychiatric drugs were preferentially bioccumulated in fish and hydrochlorothiazide was also confirmed in caged clams. The higher detection frequency and concentrations found in golden grey mullet suggested that mugilids could be used as an indicator of contamination by pharmaceuticals in coastal areas. To the best of our knowledge, this is the first study that shows data about hydrochlorothiazide, levamisole and codeine in wild marine biota.